Flu Season 2024-25. Flu vaccination remains a critically important public health intervention to reduce morbidity and mortality in those most at risk including older people, pregnant women and. The annual flu letter for 2024 to 2025 describes the national flu immunisation programme and outlines which groups are eligible for flu vaccination.

Learn more about flu disease. During flu season, which typically runs from october through may, hundreds of hoosiers become sick from influenza, and some cases are fatal, said the state health.